<%@page import="java.io.PrintWriter"%>
<%@page import="java.lang.management.ManagementFactory"%>
<%@page import="java.util.Set"%>
<%@page import="javax.management.MBeanAttributeInfo"%>
<%@page import="javax.management.MBeanInfo"%>
<%@page import="javax.management.MBeanServer"%>
<%@page import="javax.management.ObjectName"%>
<%@page import="javax.servlet.ServletException"%>
<%@page import="javax.servlet.annotation.WebServlet"%>
<%@page import="javax.servlet.http.HttpServlet"%>
<%@page import="javax.servlet.http.HttpServletRequest"%>
<%@page import="javax.servlet.http.HttpServletResponse"%>
<%
out.println("<!DOCTYPE html>");
out.println("<html>");
out.println("<body>");
out.println("<p><h1>Tomcat Pool</h1></p><p>");
try {
MBeanServer server = ManagementFactory.getPlatformMBeanServer();
Set<ObjectName> objectNames = server.queryNames(null, null);
for (ObjectName name : objectNames) {
MBeanInfo info = server.getMBeanInfo(name);
if (info.getClassName().equals(
"org.apache.tomcat.jdbc.pool.jmx.ConnectionPool")) {
for (MBeanAttributeInfo mf : info.getAttributes()) {
Object attributeValue = server.getAttribute(name,
mf.getName());
if (attributeValue != null) {
out.println("" + mf.getName() + " : "
+ attributeValue.toString() + "<br/>");
}
}
break;
}
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
out.println("</p></body>");
out.println("</html>");
%>MonitorServlet.java改写的MonitorServlet.jsp，监控Tomcat自带JDBC Connection Pool